Servo compensating accelerometer
    1.
    发明授权
    Servo compensating accelerometer 有权
    伺服补偿加速度计

    公开(公告)号:US07347097B2

    公开(公告)日:2008-03-25

    申请号:US11470206

    申请日:2006-09-05

    CPC classification number: G01P15/132 G01P15/11

    Abstract: A servo compensating accelerometer includes a top housing half and a bottom housing half rigidly connected together, and each having coaxial threaded openings. A sensing element is positioned between the top and bottom halves and affixed to the bottom half. Top and bottom magnetic systems, each of which has a magnetic conductor, a permanent magnet and a field concentrator, the magnetic systems being mounted within the respective top and bottom halves of the housing using the threaded openings. A momentum sensor includes the top and bottom magnetic systems, and also includes two movable coils mounted on a plate and positioned within the magnetic systems. A differential angle sensor includes toroidal excitation coils located on the permanent magnets, the magnetic systems and the coils of the momentum sensor. Zero bias of the accelerometer's angular displacement sensor is tuned by adjusting the position of the magnetic systems by moving them in the threaded openings. Stop screws can be used to fix position of the magnetic systems relative to the top and bottom halves of the housing. Two perpendicular mounting surfaces are located on the bottom half of the housing. An electrical circuit that includes a preamplifier, a demodulator, a correcting element, a high frequency generator, an amplifier, the excitation coils and the movable coils, which collectively form a feedback circuit, and generate an output of the accelerometer using an inductor, a resistor, a capacitor and a filter. The sensing element, in one embodiment, can be metallic.

    Abstract translation: 伺服补偿加速度计包括顶部壳体半部和刚性连接在一起的底部壳体半部,并且每个具有同轴螺纹开口。 传感元件位于上半部和下半部之间,并固定在下半部。 顶部和底部磁性系统,其中每个具有磁性导体,永磁体和场集中器,磁性系统使用螺纹开口安装在壳体的相应顶部和底部半部内。 动量传感器包括顶部和底部磁性系统,并且还包括安装在板上并定位在磁性系统内的两个可动线圈。 差分角度传感器包括位于永磁体上的环形激励线圈,动量传感器的磁系统和线圈。 加速度计角位移传感器的零偏置通过在螺纹孔中移动来调节磁系统的位置来调节。 可以使用止动螺钉来固定磁体系相对于外壳的顶部和底部两半的位置。 两个垂直的安装表面位于外壳的下半部分。 一种电路,包括前置放大器,解调器,校正元件,高频发生器,放大器,激励线圈和可动线圈,它们共同形成反馈电路,并且使用电感器产生加速度计的输出, 电阻器,电容器和滤波器。 在一个实施例中,感测元件可以是金属的。

    Compensating accelerometer with optical angle sensing
    2.
    发明授权
    Compensating accelerometer with optical angle sensing 有权
    补偿加速度计与光学角度检测

    公开(公告)号:US07406868B2

    公开(公告)日:2008-08-05

    申请号:US11460985

    申请日:2006-07-30

    CPC classification number: G01P15/093 G01P15/132

    Abstract: A compensating accelerometer includes a housing, and a sensing element mounted in the housing. The sensing element includes a pendulum flexibly mounted on a base. The sensing element includes a coil mounted on a movable plate, a curtain having a slit, and a load mass affixed to the curtain. An angle sensor within the housing includes the curtain, a fork, a light source and a differential light detector. A momentum sensor within the housing includes a permanent magnet, an inner magnetic conductor, an outer magnetic conductor and the coil. The permanent magnet is magnetized in a direction of an axis of the pendulum. A stopper is used to adjust position of the fork. A spring is on opposite side of the fork, for taking up slack in the fork. A fixator has an eccentric, for adjusting a gap between the curtain and the light detector.

    Abstract translation: 补偿加速度计包括壳体和安装在壳体中的感测元件。 传感元件包括一个灵活地安装在基座上的摆锤。 感测元件包括安装在可移动板上的线圈,具有狭缝的帘幕和固定在帘幕上的装载块。 壳体内的角度传感器包括窗帘,叉子,光源和差分光检测器。 壳体内的动量传感器包括永磁体,内磁导体,外磁导体和线圈。 永磁体沿摆锤的轴线方向被磁化。 使用止动器来调节叉子的位置。 一个弹簧在叉子的相对侧,用于在叉子上松动。 固定器具有偏心件,用于调节窗帘和光检测器之间的间隙。

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